Nauki Techniczne

Opto-Electronics Review

Zawartość

Opto-Electronics Review | 2021 | 29 | 4

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Abstrakt

Advances in photonic technologies, with new processes and scopes of photonic integrated circuits, have generated a lot of interest as the field allows to obtain sensors with reduced size and cost and build systems with high interconnectivity and information density. In this work, answering the needs of photonic sensors that must be portable, more energy-efficient, and more accurate than their electrical counterparts, also with a view to the emerging field of neuromorphic photonics, a versatile device is presented. The proposed device makes use of the well-known advantages provided by optical bistability. By combining two distributed feedback-multi quantum well semiconductor laser structures, this new optical multiple inputs - digital output device offers various essential purposes (such as logic gates, wavelength detector and monitoring) with no need for specific manufacturing for each of them. Through a commercial computer-aided design tool, VPIphotonics™, the necessary characterization of proposed device is also described.
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Bibliografia

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Autorzy i Afiliacje

Antonio M. Alaíz-Gudín
1
ORCID: ORCID
Ana P. González-Marcos
1
ORCID: ORCID

  1. Photonic Technology and Bioengineering Department, Universidad Politécnica de Madrid (UPM), Madrid, 28040 Spain
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Abstrakt

A compact temperature measuring device using a weakly coupled multi-core fibre in the Michelson interferometer structure is proposed and experimentally demonstrated. The device is manufactured by an easy and simple splicing approach which consists of a multi-core fibre segment and an in-fibre coupler. In-fibre coupler is made of a cascaded single-mode fibre and multi-core fibre balls. It enhances the interference phenomenon of light energy between the central core and the outer cores of a multi-core fibre. The sensor shows a high quality fringe visibility of about 14–18 dB in the wavelength spectrum. Multi-core structure presents multi-path interferences and exhibits a maximum temperature sensitivity of 70.6 pm/°C in the range of 20–90°C with an insensitive response to the refractive index in the range of 1.334 to 1.354. The device has the advantages of compact size, easy manufacturing, and it solves cross-sensitivity between temperature and refractive index making it an authentic real-time temperature monitoring solution.
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Bibliografia

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Autorzy i Afiliacje

Farhan Mumtaz
1 2
ORCID: ORCID
Yutang Dai
3
ORCID: ORCID
Hu Wenbin
3
Lashari G. Abbas
3 1
Rashda Parveen
2
Muhammad A. Ashraf 
2

  1. School of Information and Communication Engineering, Wuhan University of Technology, Luoshi Road 122#, Wuhan 430070, China
  2. Communications Lab., Department of Electronics, Quaid-i-Azam University, Islamabad 45320, Pakistan
  3. National Engineering Laboratory for Fibre Optic Sensing Technology, Wuhan University of Technology, Luoshi Road 122#, Wuhan 430070, China
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Abstrakt

High power fibre lasers need to be cooled efficiently to avoid their thermal damage. Temperature distribution in fibre should be estimated during the fibre laser design process. The steady-state heat equation in a cylindrical geometry is solved to derive a practical formula for temperature radial distribution in multi-layered optical fibres with arbitrary number of the layers. The heat source is located in one or more cylindrical domains. The validity of the analytical formula is tested by comparison with static heat transfer simulations of typical application examples including octagonal double clad fibre, air-clad fibre, fibre with nonuniform, microstructured core. The accuracy sufficient for practical use is reported even for cases with not exactly cylindrical domains.
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Bibliografia

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Autorzy i Afiliacje

Martin Grábner
1
ORCID: ORCID
Pavel Peterka
1
ORCID: ORCID
Pavel Honzátko
1
ORCID: ORCID

  1. Department of Fiber Lasers and Nonlinear Optics, Institute of Photonics and Electronics, Czech Academy of Sciences, 1014/57 Chaberská St., 18251 Praha 8, Czech Republic
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Abstrakt

The paper analyses the operation of different types of electronic colour sensors based on the light spectrum analysis. The application goal was to detect the type of the airport lamp based on differences in colour components of the light emitted by luminaires with specific spectral characteristics. Recognition of airport lamps is based on the analysis of the light spectrum. Proposed solution allows for an automatic software selection of appropriate conversion factors and comparison with specific standards necessary for this type of measurements. Various types of sensors were discussed and the AS7262 sensor was examined in detail. The colour sensor and the light intensity sensor were used in the mobile control device for examining elevated airport lamps and in the measurement platform for quality testing of embedded airport lamps. Two additional aspects were investigated: 1) influence of an additional acrylic glass cover; 2) distance between airport lamps and the spectrum sensor.
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Bibliografia

  1. European Aviation Safety Agency. Certification Specifications (CS) and Guideline Material (GM) for Aerodrome Design. Edition 3, Annex to Decision No. 2016/027/R of the EASA Executive Director. (2016).
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  5. Podbucki, K., Suder, J., Marciniak, T. & Dąbrowski, A. Elektroniczna matryca pomiarowa do badania lamp lotniskowych. Prz. Elektrotechniczny 2, 47–51 (2021). https://doi.org/10.15199/48.2021.02.12 [in Polish]
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  12. AMS, AS7265x Smart 18-Channel VIS to NIR Spectral_ID 3-Sensor Chipset with Electronic Shutter, Datasheet [v1-04], (July 9, 2018). https://datasheetspdf.com/pdf/1315799/ams/AS72651/1
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  14. AMS, AS7262 6-Channel Visible Spectral_ID Device with Electronic Shutter and Smart Interface, Datasheet [v1-01], (March 17, 2017). https://ams.com/documents/20143/36005/AS7262_ DS000486_2-00.pdf
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Autorzy i Afiliacje

Jakub Suder
1
ORCID: ORCID
Kacper Podbucki
1
ORCID: ORCID
Tomasz Marciniak
1
ORCID: ORCID
Adam Dąbrowski
1
ORCID: ORCID

  1. Division of Signal Processing and Electronic Systems, Institute of Automation and Robotics, Poznan University of Technology, 24 Jana Pawła II Ave., 60-965 Poznań, Poland
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Abstrakt

This research paper discusses an analytical approach to designing the active region of light emitting diodes to enhance its performance. The layers in the active region were modified and the effects of changing the width of quantum well and barrier layers in a multi-quantum light emitting diode on the output power and efficiency have been investigated. Also, the ratio of the quantum well width to the B layer width was calculated and proposed in this research paper. The study is carried out on two different LED structures. In the first case, the width of the quantum well layers is kept constant while the width of the B layers is varied. In the second case, both the quantum well and B layer widths are varied. Based on the simulation results, it has been observed that the LED power efficiency increases considerably for a given quantum well to B layers width ratio without increasing the production complexity. It is also seen that for a desired power efficiency the width of quantum well should be between 0.003 µm and 0.006 µm, and the range of B width (height) should be 2.2 to 6 times the quantum well width. The proposed study is carried out on the GaN-AlGaN-based multi-quantum well LED structure, but this study can be extended to multiple combinations of the semiconductor structures.
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Bibliografia

  1. Lenk, R. & Lenk, C. Practical Lighting Design with LEDs. (2nd. ed.) (John Wiley & Sons, Ltd., 2017).
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  5. Sharma, L, & Sharma, R. Optimized design of narrow spectral linewidth nonpolar m-plane InGaN/GaN micro-scale light-emitting diode. J. Opt. 49, 397–402 (2020). https://doi.org/10.1007/s12596-020-00632-4
  6. Rashidi, A. et al. High-speed nonpolar InGaN/GaN LEDs for visible-light communication. IEEE Photonics Technol. Lett. 29, 381–384 (2017). https://doi.org/10.1109/LPT.2017.2650681
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  15. Shi, J.-W. et al. III-nitride-based cyan light-emitting diodes with GHz bandwidth for high-speed visible light communication. IEEE Electron. Device Lett. 37, 894–897 (2016). https://doi.org/10.1109/LED.2016.2573265
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Autorzy i Afiliacje

Lokesh Sharma
1
Ritu Sharma
1

  1. Department of Electronics and Communication Engineering, Malaviya, National Institute of Technology, Jaipur, Rajasthan 302017, India
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Abstrakt

Fano resonance is an optical effect that emerges from the coherent coupling and interference (constructive and destructive) between the continuous state (background process) and the Lorentzian state (resonant process) in the plasmonic waveguide-resonator system. This effect has been used in the applications like optical sensors. These sensors are extensively used in sensing biochemicals and gases by the measurement of refractive index changes as they offer high sensitivity and ultra-high figure of merit. Herein, we surveyed several plasmonic Fano sensors with different geometries composed of metal-insulator-metal waveguide(s). First, the resonators are categorized based on different architectures. The materials and methods adopted for these designs are precisely surveyed and presented. The performances are compared depending upon the characterization parameters like sensitivity and figure of merit. Finally, based on the survey of very recent models, the advances and challenges of refractive index sensing deployed on Fano resonances are discussed.
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Bibliografia

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Autorzy i Afiliacje

Rammani Adhikari
1 2
Diksha Chauhan
1
Genene T. Mola
3
Ram P. Dwivedi
1

  1. Faculty of Engineering and Technology, Shoolini University, Bajhol, (HP) 173229, India
  2. School of Engineering, Pokhara University, Pokhara Metropolitan City 30, Kaski, Nepal
  3. School of Chemistry and Physics, University of Kwazulu Natal, Scottsville, South Africa
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Abstrakt

In this paper, the effect of an indoor visible light communication channel is studied. Moreover, the analysis of the received power distribution of the photodiode in the line of sight and the first reflection of the channel without line of sight with several parameters is simulated. Two different waveforms are explained in detail. Orthogonal frequency division multiplexing has been widely adopted in radio frequency and optical communication systems. One of the most important disadvantages of the orthogonal frequency division multiplexing signal is the high peak-to-average power ratio. Therefore, it is important to minimize the peak-to-average power ratio in the visible light communication systems more than in radio-frequency wireless applications. In the visible light communication systems, the high peak-to-average power ratio produces a high DC bias which reduces power efficiency of the system. A discrete Fourier transform spread orthogonal frequency division multiplexing is proposed to be used in wireless communication systems; its ability to minimize peak-to-average power ratio has been tested. The analysis of two different subcarrier allocation methods for the discrete Fourier transform-spread subcarriers, as well as the examination of two distinct subcarrier allocation strategies, distributed and localized mapping, are investigated and studied. The effects of an accurate new sub-band mapping for the localized discrete Fourier transform spread orthogonal frequency division multiplexing scheme are presented in this paper. The light-fidelity system performance of the orthogonal frequency division multiplexing and discrete Fourier transform spread orthogonal frequency division multiplexing with different sub-mapping techniques are simulated with Matlab™. A system performance size of bit error rate and peak-to-average power ratio are obtained, as well.
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Bibliografia

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Autorzy i Afiliacje

Saleh Hussin
1
Eslam M. Shalaby
2

  1. Electronics and Communication Engineering Department, Faculty of Engineering, Zagazig University, Zagazig, 44519 Egypt
  2. Electronics and Communication Engineering Department, Higher Technological institute, 10th of Ramadan City, Megawra 1, 44629 Egyp
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Abstrakt

In perovskite solar cells, series of symmetrical and asymmetrical imino-naphthalimides were tested as hole-transporting materials. The compounds exhibited high thermal stability at the temperature of the beginning of thermal decomposition above 300 °C. Obtained imino-naphthalimides were electrochemically active and their adequate energy levels confirm the application possibility in the perovskite solar cells. Imino-naphthalimides were absorbed with the maximum wavelength in the range from 331 nm to 411 nm and emitted light from the blue spectral region in a chloroform solution. The presented materials were tested in the perovskite solar cells devices with a construction of FTO/b-TiO2/m-TiO2/perovskite/ HTM/Au. For comparison, the reference perovskite cells were also performed (without hole-transporting materials layer). Of all the proposed materials tested as hole-transporting materials, the bis-(imino-naphthalimide) containing in core the triphenylamine structure showed a power conversion efficiency at 1.10% with a short-circuit current at 1.86 mA and an open-circuit voltage at 581 mV.
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Bibliografia

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  23. Korzec, M. et al. Synthesis and thermal, photophysical, electrochemical properties of 3,3-di[3- arylcarbazol-9-ulmethyl]oxetane derivatives. Materials 14, 5569 (2021). https://doi.org/10.3390/ma14195569
  24. Pająk, A. K. et al. New thiophene imines acting as hole transporting materials in photovoltaic devices. Energy Fuels 34, 10160–10169 (2020). https://doi.org/10.1021/acs.energyfuels.0c01698
  25. Kula, S. et al. 9,9’-bifluorenylidene derivatives as novel hole-transporting materials for potential photovoltaic applications. Dyes Pigm. 174, 108031 (2020). https://doi.org/10.1016/j.dyepig.2019.108031
  26. Derkowska-Zielinska, B. et al. Photovoltaic cells with various azo dyes as components of the active layer. Sol. Energy 203, 19–24 (2020). https://doi.org/10.1016/j.solener.2020.04.022
  27. Nitschke, P. et al. Spectroscopic and electrochemical properties of thiophene-phenylene based Schiff-bases with alkoxy side groups, towards photovoltaic applications. Spectrochim. Acta A 248, 119242 (2021). https://doi.org/10.1016/j.saa.2020.119242
  28. Sęk, D. et al. Polycyclic aromatic hydrocarbons connected with Schiff base linkers: Experimental and theoretical photophysical characterization and electrochemical properties Spectrochim. Acta A, 175, 168–176 (2017). https://doi.org/10.1016/j.saa.2016.12.029
  29. Korzec, M. et al. Live cell imaging by 3-imino-(2-phenol)-1,8-naphthalimides: The effect of ex vivo hydrolysis. Spectrochim. Acta A 238, 118442 (2020). https://doi.org/10.1016/j.saa.2020.118442
  30. Kotowicz, S. et al. Novel 1,8-naphthalimides substituted at 3-C position: Synthesis and evaluation of thermal, electrochemical and luminescent properties. Dyes Pigm. 158, 65–78 (2018). https://doi.org/10.1016/j.dyepig.2018.05.017
  31. Korzec, M. et al. Novel b-ketoenamines versus azomethines for organic electronics: characterization of optical and electrochemical properties supported by theoretical studies. J Mater Sci, 55, 3812–3832 (2020). https://doi.org/10.1007/s10853-019-04210-3
  32. Kotowicz, S. et al. New acceptor–donor–acceptor systems based on bis-(imino-1,8- naphthalimide). Materials 14, 2714 (2021). https://doi.org/10.3390/ma14112714
  33. Costa, J. S. C. et al. Optical band gaps of organic semiconductor materials Opt. Mater. 58, 51–60 (2016). https://doi.org/10.1016/j.optmat.2016.03.041
  34. Nitschke, P. et al. The effect of alkyl substitution of novel imines on their supramolecular organization, towards photovoltaic applications, Sol. Energy 221, 536–544.https://doi.org/10.1016/j.solener.2021.04.055
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  36. Kim, K. et al. Direct p-doping of Li-TFSI for efficient hole injection: Role of polaronic level in molecular doping. Appl. Surf. Sci. 480, 565–571 (2019).https://doi.org/10.1016/j.apsusc.2019.02.248
  37. Singh, R. & Parashar, M. Origin of Hysteresis in Perovskite Solar Cells in Soft-Matter Thin Film Solar Cells: Physical Processes and Device Simulation (AIP Publishing, on-line) (New York, 2020). https://doi.org/10.1063/9780735422414_001
  38. Li, B. et al. Insights into the hole transport properties of LiTFSI-doped spiro-OMeTAD films through impedance spectroscopy. J. Appl. Phys.128, 085501 (2020).https://doi.org/10.1063/5.0011868
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Autorzy i Afiliacje

Mateusz Korzec
1
ORCID: ORCID
Sonia Kotowicz
1
ORCID: ORCID
Agnieszka K. Pająk
1 2
ORCID: ORCID
Ewa Schab-Balcerzak
1 3
ORCID: ORCID

  1. Institute of Chemistry, Faculty of Science and Technology, University of Silesia in Katowice, 9 Szkolna St., 40-007 Katowice, Poland
  2. Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymont St., 30-059 Krakow, Poland
  3. Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Skłodowska St., 41-819 Zabrze, Poland
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Abstrakt

The technology of manufacturing silicon solar cells is complex and consists of several stages. The final steps in succession are the deposition of antireflection layer and discharge contacts. Metallic contacts are usually deposited by the screen printing method and then, fired at high temperature. Therefore, this article presents the results of a research on the effect of heat treatment on the properties of the Al2O3 thin film previously deposited by the atomic layer deposition method. It works well as both passivating and antireflection coating. Moreover, heat treatment affects the value of the cell short-circuit current and, thus, its efficiency. The surface morphology, optical and electrical properties were investigated, describing the influence of heat treatment on the properties of the deposited layers and the manufactured solar cells.
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Bibliografia

  1. Marks-Bielska, R. et al. The importance of renewable energy sources in Poland’s energy Energies 13, 1–23 (2020). https://doi.org/10.3390/en13184624
  2. Asfar, Y. et al. Evaluating Photovoltaic Performance Indoors. in 2012 38th IEEE Photovoltaic Specialists Conference (PVSC). 1948–1951 (IEEE, Austin, USA 2012).
  3. Ranjan, S. et al. Silicon solar cell production. Comput. Chem. Eng. 35, 1439–1453 (2011). https://doi.org/10.1016/j.compchemeng.2011.04.017
  4. Drygala, A. et al. Influence of laser texturization surface and atomic layer deposition on optical properties of polycrystalline silicon. Int. J. Hydrog. Energy 41, 7563–7567 (2016). https://doi.org/10.1016/j.ijhydene.2015.12.180
  5. Hou, G., Garcia, I. & Rey-Stolle, I. High-low refractive index stacks for broadband antireflection coatings for multijunction solar cells. Sol. Energy 217, 29–39 (2021). https://doi.org/10.1016/j.solener.2021.01.060
  6. Dobrzański, L. A., Szindler, M., Drygała, A. & Szindler, M.M., Silicon solar cells with Al2O3 antireflection coating. Cen. Eur. J. Phys. 12, 666–670 (2014). https://doi.org/10.2478/s11534-014-0500-9
  7. Sarkar, S. & Pradhan, S. K. Silica-based antireflection coating by glancing angle deposition. Surf. Eng. 35, 982–985. (2019). https://doi.org/10.1080/02670844.2019.1596578
  8. Szindler, M. Szindler, M. M., Boryło, P. & Jung, T. Structure and optical properties of TiO2 thin films deposited by ALD Open Phys. 15, 1067–1071 (2017). https://doi.org/10.1515/phys-2017-0137
  9. Król, K. et al. Influence of atomic layer deposition temperature on the electrical properties of Al/ZrO2/SiO2/4H-SiC metal-oxide semiconductor structures. Phys. Status Solidi (A) 215, 1–7 (2018). https://doi.org/10.1002/pssa.201700882
  10. Boryło, P. et al. Structure and properties of Al2O3 thin films deposited by ALD proces. Vacuum 131, 319–326 (2016). https://doi.org/10.1016/j.vacuum.2016.07.013
  11. Drabczyk, K. et al. Comparison of diffused layer prepared using liquid dopant solutions and pastes for solar cell with screen printed electrodes. Microelectron. Int. 33, 167–171 (2016). https://doi.org/10.1108/MI-03-2016-0031
  12. Öğütman, K. et al. Spatial atomic layer deposition of aluminum oxide as a passivating hole contact for silicon solar Phys. Status Solidi (A) 217, 1–6 (2020). https://doi.org/10.1002/pssa.202000348
  13. Drabczyk, K. et al. Electroluminescence imaging for determining the influence of metallization parameters for solar cell metal contacts. Sol. Energy 126, 14–21 (2016). https://doi.org/10.1016/j.solener.2015.12.029
  14. Park, H. H. Inorganic materials by atomic layer deposition for perovskite solar cells. Nanomaterials 11, 1–22 (2021). https://doi.org/10.3390/nano11010088
  15. Hossain, A. et al. Atomic layer deposition enabling higher efficiency solar cells: A review. Nano Materials 2, 204–226 (2020). https://doi.org/10.1016/j.nanoms.2019.10.001
  16. Werner, F. et al. High-rate atomic layer deposition of Al2O3 for the surface passivation of Si solar cells. Energy Procedia 8, 301–306 (2011). https://doi.org/10.1016/j.egypro.2011.06.140
  17. Werner, F., Cosceev, A. & Schmidt, J. Silicon surface passivation by Al2O3: Recombination parameters and inversion layer solar cells. Energy Procedia 27, 319–324 (2012). https://doi.org/10.1016/j.egypro.2012.07.070
  18. Swatowska, B. Antireflective and passivation properties of the photovoltaic structure with Al2O3 layer of different thickness. Microelectron. Int. 35, 177–180 (2018). https://doi.org/10.1108/MI-04-2018-0020
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Autorzy i Afiliacje

Marek Szindler
1
ORCID: ORCID
Magdalena M. Szindler
2
ORCID: ORCID

  1. Scientific and Didactic Laboratory of Nanotechnology and Material Technologies, Faculty of Mechanical Engineering, Silesian University of Technology, 7 Towarowa St., 44-100 Gliwice, Poland
  2. Department of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, 18a Konarskiego St., 44-100 Gliwice, Poland
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Abstrakt

Hybrid pixel radiation detectors with a direct photon-to-charge conversion working in a single photon counting mode have gained increasing attention due to their high dynamic range and noiseless imaging. Since sensors of different materials can be attached to readout electronics, they enable work with a wide range of photon energies. The charge-sharing effect observed in segmented devices, such as hybrid pixel detectors, is a phenomenon that deteriorates both spatial resolution and detection efficiency. Algorithms that allow the detection of a photon irrespective of the charge-sharing effect are proposed to overcome these limitations. However, the spatial resolution of the detector can be further improved beyond the resolution determined by the pixel size if information about the charge proportions collected by neighbouring pixels is used to approximate the interaction position. In the article, an approach to achieve a subpixel resolution in a hybrid pixel detector working in the single photon counting mode is described. Requirements and limitations of digital inter-pixel algorithms which can be implemented on-chip are studied. In the simulations, the factors influencing the detector resolution are evaluated, including size of a charge cloud, number of virtual pixel subdivisions, and detector parameters.
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Bibliografia

  1. Ballabriga, et al. Review of hybrid pixel detector readout ASICs for spectroscopic X-ray imaging. J. Instrum. 11, P01007–P01007 (2016). https://doi.org/10.1088/1748-0221/11/01/P01007
  2. Taguchi, K. & Iwanczyk, J. S. Vision 20/20: Single photon counting X-ray detectors in medical imaging. Med. Phys. 40, 100901 (2013). https://doi.org/10.1118/1.4820371
  3. Bahadur, D. et al. Evolution of structure and dynamics of thermo-reversible nanoparticle gels-A combined XPCS and rheology study. J. Chem. Phys. 151, 10 (2019). https://doi.org/10.1063/1.5111521
  4. Sheyfer, et al.Nanoscale critical phenomena in a complex fluid studied by X-ray photon correlation spectroscopy.Phys. Rev. Lett. 125, 125504 (2020). https://doi.org/10.1103/PhysRevLett.125.125504
  5. Szczygiel, R., Grybos, P., Maj, P. & Zoladz, M. PXD18k - Fast Single Photon Counting Chip with Energy Window for Hybrid Pixel Detector. in 2011 IEEE Nuclear Science Symposium Conference Record. 932–937 (IEEE, Valencia, Spain 2011). https://doi.org/10.1109/NSSMIC.2011.6154126
  6. Nilsson, H. E., Dubari, E., Hjelm, M. & Bertilsson, K. Simulation of photon and charge transport in x-ray imaging semiconductor sensors. Nucl. Instrum. Methods Phys. Res. A. 487, 151–162 (2002). https://doi.org/10.1016/S0168- 9002(02)00959-2
  7. Ballabriga, R. et al. The Medipix3RX: a high resolution, zero dead-time pixel detector readout chip allowing spectroscopic imaging. Instrum. 8, C02016–C02016 (2013). https://doi.org/10.1088/1748-0221/8/02/C02016
  8. Krzyzanowska, A. et al. Characterization of the photon counting CHASE Jr., chip built in a 40-nm CMOS process with a charge-sharing correction algorithm using a collimated X-ray beam. IEEE Trans. Nucl. Sci. 64, 2561–2568 (2017). https://doi.org/10.1109/TNS.2017.2734821
  9. Bellazzini, R. et al. PIXIE III: a very large area photon-counting CMOS pixel ASIC for sharp X-ray spectral imaging. J. Instrum. 10, C01032–C01032 (2015). https://doi.org/10.1088/1748-0221/10/01/C01032
  10. Otfinowski, P. et al. Comparison of allocation algorithms for unambiguous registration of hits in presence of charge- sharing in pixel detectors. J. Instrum. 12, C01027–C01027 (2017). http://doi.org/10.1088/1748-0221/12/01/C01027
  11. Otfinowski, P., Deptuch, G. W. & Maj, P. Asynchronous approximation of a center of gravity for pixel detectors’ readout circuits. IEEE Solid-State Circuits 53, 1550–1558 (2018). https://doi.org/10.1109/JSSC.2018.2793530
  12. Cartier, et al. Micron resolution of MÖNCH and GOTTHARD, small pitch charge integrating detectors with single photon sensitivity. J. Instrum. 9, C05027–C05027 (2014). https://doi.org/10.1088/1748-0221/9/05/C05027
  13. Dreier, E. S. et al. Virtual subpixel approach for single-mask phase-contrast imaging using Timepix3. J. Instrum. 14, C01011 (2019). https://doi.org/10.1088/1748-0221/14/01/C01011
  14. Maj, P. et al. Measurements of ultra-fast single photon counting chip with energy window and 75 μm pixel pitch with Si and CdTe J. Instrum. 12, C03064 (2017). https://doi.org/10.1088/1748-0221/12/03/C03064
  15. Krzyzanowska, A., Niedzielska, A. & Szczygieł, R. Charge-sharing simulations for new digital algorithms achieving subpixel resolution in hybrid pixel detectors. J. Instrum. 15, C02047 (2020). https://doi.org/10.1088/1748- 0221/15/02/C02047
  16. Lutz, Semiconductor Radiation Detectors, Device Physics. (Berlin, Heidelberg: Springer Berlin Heidelberg, 2007).
  17. NIST XCOM: Photon Cross Sections Database – Introduction. NIST http://www.physics.nist.gov/PhysRefData/Xcom/Text/intro.html (2017).
  18. Otfinowski, A. et al. Pattern recognition algorithm for charge-sharing compensation in single photon counting pixel detectors. J. Instrum. 14, C01017 (2019). https://doi.org/10.1088/1748-0221/14/01/C01017
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Autorzy i Afiliacje

Aleksandra Krzyżanowska
1
ORCID: ORCID
Robert Szczygieł
1
ORCID: ORCID

  1. AGH University of Science and Technology, 30 A. Mickiewicza Ave., 30-059 Krakow, Poland
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Abstrakt

The research and analysis of the bactericidal properties of the spacer knitted fabric with the UV-C system are presented in this paper. The disintegration factor affecting the bacteria in the knitted fabric is the UV-C radiation in the range of 265–270 nm distributed via woven optical fibres. The way of integrating elements of the system generating the UV-C radiation in the structure of the spacer knitted fabric was designed, as well as various configurations of optical fibres arrangement, fibre density, number of radiation sources, and diode types were tested. The material was contaminated with selected microorganisms indicative of sanitary contamination and important in terms of nosocomial infections. The scope of the research included microbiological (quantitative and qualitative) analyses of selected taxonomic groups of microorganisms (mesophilic bacteria, fungi, actinomycetes) before and after the irradiation process. The analysis of the research results and the applied modification of the knitted fabric turned out to be effective in reducing the amount of potentially pathogenic microorganisms.
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Bibliografia

  1. Gniotek, K. & Krucinska, I. The basic problems of textronics. Fibres Text. East. Eur.12, 13–16 (2004).
  2. Łada-Tondyra, E. & Jakubas, A. Modern applications of textronic systems. Przegląd Elektrotechniczny 94, 198–201 (2018). [in Polish]. https://doi.org/10.15199/48.2018.12.44
  3. Strus, M. Mechanisms of action of physical factors on micro-organisms. Roczniki Państwowego Zakładu Higieny 3, 263–268 (1997). [in Polish]
  4. Diston, D., Ebdon, J. E. & Taylor, H. D. The effect of UV-C radiation (254 nm) on candidate microbial source tracking phages infecting a human-specific strain of Bacteroides fragilis (GB-124). Water Health 10, 262–270 (2012). https://doi.org/10.2166/wh.2012.173
  5. Wolska, A., Wisełka, M. & Pawlak. A. Reducing the risk of COVID-19 through the use of ultraviolet https://m.ciop.pl/CIOPPortalWAR/file/89579/202003206928&Covid-PROMIENIOWANIE- UV-Komunikat-3.pdf (2020). [in Polish]
  6. Statement on the CIE position on ultraviolet (UV) radiation as a measure to reduce the risk of the spread of COVID-19. https://cie.co.at/files/CIE%20Position%20Statement%20-%20UV%20radiation%20(2020)_PL_0.pdf (2020). [in Polish]
  7. Kowalski, W. J., Petraitis, V. & Walsh, T. J. 2020 COVID-19 Corona-virus Ultraviolet Susceptibility. (PurpleSun, Inc, New York, 2020).
  8. Beretsou, V. G. et al. A chemical, microbiological and (eco) toxicological scheme to understand the efficiency of UV-C/H2O2 oxidation on antibiotic-related microcontaminants in treated urban wastewater. Total Environ. 744, 140835 (2020). https://doi.org/10.1016/j.scitotenv.2020.140835
  9. Woo, H. et al. Efficacy of inactivation of human enteroviruses by dual-wavelength germicidal ultraviolet (UV-C) light emitting diodes (LEDs). Water 11, 1131 (2019). https://doi.org/10.3390/w11061131
  10. Phattarapattamawong, S., Chareewan, N. & Polprasert, C. Comparative removal of two antibiotic resistant bacteria and genes by the simultaneous use of chlorine and UV irradiation (UV/chlorine): Influence of free radicals on gene degradation. Sci. Total Environ. 755, 142696 (2021). https://doi.org/10.1016/j.scitotenv.2020.142696
  11. Lada-Tondyra, E. & Jakubas, A. The Concept of a Textronic System Limiting Bacterial Growth. in 2018 Progress in Applied Electrical Engineering (PAEE) 1–4 (IEEE, Koscielisko, Poland, 2018). https://ieeexplore.ieee.org/document/8441107
  12. Cysewska-Sobusiak, A., Prokop, D.& Jukiewicz, M. Development Trends and Application Areas Fibre Optic Techniques. In Poznan University of Technology Academic Journals. Electrical Engineering 89, 205–217 (2017). [in Polish]
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  14. Armakan, D. M. & Roye, A. A study on the compression behavior of spacer fabrics designed for concrete applications. Fibres Polym. 10, 116–123 (2009). https://doi.org/10.1007/s12221-009-0116-7
  15. ProLight PB2D-1CLA-TC 1W UV Power LED Technical Datasheet. ProLight Opto https://www.tme.eu/Document/5559cb9280c8f6735ea54eeee3067a39/PB2D-1CLA-TC.pdf (2021).
  16. ISO 18593:2018 Microbiology of the food chain — Horizontal methods for surface sampling. (2018).
  17. European Pharmacopoeia, 10th Edition. https://www.edqm.eu/en/work-programme-bsp (2021).
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Autorzy i Afiliacje

Ewa Łada-Tondyra
1
ORCID: ORCID
Adam Jakubas
1
ORCID: ORCID
Beata Jabłońska
2
ORCID: ORCID
Ewa Stańczyk-Mazanek
2
ORCID: ORCID

  1. Częstochowa University of Technology, Faculty of Electrical Engineering, Częstochowa, Poland
  2. Częstochowa University of Technology, Faculty of Infrastructure and Environment, Częstochowa, Poland
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Abstrakt

The present review is mainly focused on the extended analysis of the results obtained from coupled measurement techniques of a thermal imaging camera and chronoamperometry for imines in undoped and doped states. This coupled technique allows to identify the current-voltage characteristics of thin films based on imine, as well as to assess layer defects in thermal images. Additional analysis of results provides further information regarding sample parameters, such as resistance, conductivity, thermal resistance, and Joule power heat correlated with increasing temperature. As can be concluded from this review, it is possible not only to study material properties at the supramolecular level, but also to tune macroscopic properties of -conjugated systems. A detailed study of the structure-thermoelectrical properties in a series of eight unsymmetrical and symmetrical imines for the field of optoelectronics and photovoltaics has been undertaken. Apart from this molecular engineering, the imines properties were also tuned by supramolecular engineering via protonation with camphorsulfonic acid and by creation of bulk-heterojunction compositions based on poly(4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl-alt-3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophene-4,6-diyl) and/or [6,6]-phenyl-C71-butyric acid methyl ester, poly(3,4-ethylenedioxythiophene) towards the analysed donor or acceptor ability of imines in the active layer. The use of coupled measurement techniques of a thermal imaging camera and chronoamperometry allows obtaining comprehensive data on thermoelectric properties and defects indicating possible molecule rearrangement within the layer.
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Bibliografia

  1. Wang, D. et al. Recent advances in molecular design of organic thermoelectric materials. CCS Chem. 3, 2212–2225 (2021). https://doi.org/10.31635/ccschem.021.202101076
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  3. Huang, D. et al. Conjugated-backbone effect of organic small molecules for n‑type thermoelectric materials with ZT over 0.2. J. Am. Chem. Soc. 139, 13013–13023 (2017). https://doi.org/10.1021/jacs.7b05344
  4. Mao, L. et al. Patching defects in the active layer of large-area organic solar cells. J. Mater.A 6, 5817–5824 (2018). https://doi.org/10.1039/C7TA11264E
  5. Lindner, S. M. et al. Charge separation at self-assembled nano-structured bulk interface in block copolymers. Chem 45, 3364–3368 (2006). https://doi.org/10.1002/anie.200503958
  6. Han, Y. et al. Calibration and image processing of aerial thermal image for UAV application in crop water stress estimation. J. Sensors 2021, Article ID 5537795 (2021). https://doi.org/10.1155/2021/5537795
  7. Stumper, M., Kraus, J. & Capousek, L. Thermal imaging in aviation. Magazine of Aviation Development 3, 16 (2015). https://doi.org/10.14311/MAD.2015.16.03
  8. Thermal Imaging in the Automotive Industry. Thermascan Ltd https://www.thermascan.co.uk/blog/thermal-imaging-automotive (2021).
  9. Thermography in Chemical Industry. InfraTec GmbH https://www.infratec.eu/thermography/industries-applications/chemical-industry/ (2021).
  10. Kasikowski, R. & Więcek, B. Fringing-effect losses in inductors by thermal modeling and thermographic measurements. IEEE Trans. Power Electron. 36, 9772–9786 (2021). https://doi.org/10.1109/TPEL.2021.3058961
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  12. Kowalski, M. Ł., Grudzień, A. & Ciurapiński, W. Detection of human faces in thermal infrared images. Meas. Syst. 28, 307–321 (2021). https://doi.org/10.24425/mms.2021.136609
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Autorzy i Afiliacje

Krzysztof. A. Bogdanowicz
1
ORCID: ORCID
Agnieszka Iwan
1
ORCID: ORCID

  1. Military Institute of Engineer Technology, 136 Obornicka St., 50-961 Wroclaw, Poland
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Abstrakt

Preliminary results of laboratory and field tests of fibre optic rotational seismographs designed for rotational seismology are presented. In order to meet new directions of the research in this field, there is clearly a great need for suitable and extremely sensitive wideband sensors. The presented rotational seismographs based on the fibre optic gyroscopes show significant advantages over other sensor technologies when used in the seismological applications. Although the presented results are prepared for systems designed to record strong events expected by the so-called “engineering seismology”, the described system modification shows that it is possible to construct a device suitable for weak events monitoring expected by basic seismological research. The presented sensors are characterized, first and foremost, by a wide measuring range. They detect signals with amplitudes ranging from several dozen nrad/s up to even few rad/s and frequencies from 0.01 Hz to 100 Hz. The performed Allan variance analysis indicates the sensors main parameters: angle random walk in the range of 3 ∙ 10 −8 - 2 ∙ 10 −7 rad/s and bias instability in the range of 2 ∙ 10 −9 - 2 ∙ 10 −8 rad/s depending on the device. The results concerning the registration of rotational seismic events by the systems located in Książ Castle, Poland, as well as in the coalmine “Ignacy” in Rybnik, Poland were also presented and analysed.
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Bibliografia

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Autorzy i Afiliacje

Leszek R. Jaroszewicz
1
ORCID: ORCID
Michał Dudek
1
ORCID: ORCID
Anna T. Kurzych
1
ORCID: ORCID
Krzysztof P. Teisseyre
2
ORCID: ORCID

  1. Institute of Applied Physics, Military University of Technology, 2 gen. S. Kaliskiego St., Warszawa, 00-908, Poland
  2. Institute of Geophysics, Polish Academy of Sciences, 64 Ks. Janusza St., Warszawa, 01-452, Poland

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